A critical review of the reactivity of manganese oxides with organic contaminants

Remucal, Christina K.; Ginder‐Vogel, Matthew

doi:10.1039/c3em00703k

Cited by 222 publications

(326 citation statements)

References 175 publications

(515 reference statements)

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“…Results showed that clarithromycin and roxithromycin can be rapidly absorbed onto this amorphous MnO 2 at pH 5 (Feitosa-Felizzola et al, 2009), but adsorption did not contribute to carbamazepine removal with amorphous MnO 2 (He et al, 2012;Remucal and Ginder-Vogel, 2014). Similar to Fe(III), adsorption of pharmaceuticals onto MnO 2 is also through surface complex forming.…”

Section: Adsorptionmentioning

confidence: 85%

“…MnO 2 can be used to remove pharmaceuticals and other pollutants by adsorption including antibacterial agents like sulfonamides and tetracycline, and endocrine disruptors (Bernard et al, 1997;Remucal and Ginder-Vogel, 2014). Results showed that clarithromycin and roxithromycin can be rapidly absorbed onto this amorphous MnO 2 at pH 5 (Feitosa-Felizzola et al, 2009), but adsorption did not contribute to carbamazepine removal with amorphous MnO 2 (He et al, 2012;Remucal and Ginder-Vogel, 2014).…”

Section: Adsorptionmentioning

confidence: 90%

“…As compared to synthetic MnO 2 , microbially produced bioMnOx has a unique structure, yielding a variety of advantages for oxidation. BioMnOx are reactive under neutral pH (»7), instead of the acidic conditions required for abiotically produced MnOx (Kuan et al, 2013;Remucal and Ginder-Vogel, 2014). Additionally, the bacteria can bind the intermediate Mn(III) compounds via ligands, thus effectively increasing the oxidative power of a Mn-bacteria mixture (Meerburg et al, 2012).…”

Section: Biological-related Removalmentioning

confidence: 99%

“…In chemical removal of pharmaceuticals, Fe and Mn play important roles as oxidants, reductants, or catalysts such as Fe(II) in Fenton processes (Kochi, 1967;Guan et al, 2010;Chelliapan and Sallis, 2013;Remucal and Ginder-Vogel, 2014;Segura et al, 2015). Chemical removal of pharmaceuticals in water treatment occurs through chemical oxidation via oxidizing agents (Fe(III), Fe(VI), Mn(IV), Mn(VII)), or chemical reduction via reducing agents like nZVI to degrade a compound or a group of compounds (Lee et al, 2009;Guan et al, 2010).…”

Section: Chemical Removalmentioning

confidence: 99%

“…1B) (Gao et al, 2012;He et al, 2012;Meerburg et al, 2012;Remucal and Ginder-Vogel, 2014;Tu et al, 2014;Li et al, 2015a). Permanganate (MnO 4 ¡ ) can be used to remove pharmaceuticals and other micropollutants containing electron-rich moieties (Guan et al, 2010;Hendratna, 2011).…”

Section: Chemical Oxidationmentioning

confidence: 99%

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Pharmaceutical removal from water with iron- or manganese-based technologies: A review

Liu

Sutton

Rijnaarts

et al. 2016

Critical Reviews in Environmental Science and Technology

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Pharmaceuticals are detected at trace levels in waters. Their adverse effects on aquatic ecosystems and human health demand novel pharmaceutical removal technologies for treating wastewater effluents. Iron (Fe) or manganese (Mn) may play important roles in these new technologies since these metals are abundantly available at low costs and are known to contribute to organic conversions via physico-chemical, chemical, and biologically related processes. Few reviews describe and discuss Fe-or Mn-based technologies for the purpose to remove pharmaceuticals from water. Therefore, we review the current literature sorted into the three removal mechanisms, that is., through physico-chemical, chemical, and biological processes. The principals, performance, and influential parameters of these three types of technologies are described. Current and potential applications of these technologies are critically evaluated in order to identify advantages and challenges. In addition, the Fe-or Mn-based technologies which are currently not used but promising to further develop to remove pharmaceuticals cost efficiently are proposed.

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Section: Adsorptionmentioning

confidence: 85%

Section: Adsorptionmentioning

confidence: 90%

Section: Biological-related Removalmentioning

confidence: 99%

Section: Chemical Removalmentioning

confidence: 99%

Section: Chemical Oxidationmentioning

confidence: 99%

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Pharmaceutical removal from water with iron- or manganese-based technologies: A review

Liu

Sutton

Rijnaarts

et al. 2016

Critical Reviews in Environmental Science and Technology

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Highly Efficient Flexocatalysis of Two‐Dimensional Semiconductors

Liu

et al. 2022

Advanced Materials

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Catalysis is vitally important for chemical engineering, energy, and environment. It is critical to discover new mechanisms for efficient catalysis. For piezoelectric/pyroelectric/ferroelectric materials that have a non‐centrosymmetric structure, interfacial polarization‐induced redox reactions at surfaces leads to advanced mechanocatalysis. Here, the first flexocatalysis for 2D centrosymmetric semiconductors, such as MnO2 nanosheets, is demonstrated largely expanding the polarization‐based‐mechanocatalysis to 2D centrosymmetric materials. Under ultrasonic excitation, the reactive species are created due to the strain‐gradient‐induced flexoelectric polarization in MnO2 nanosheets composed nanoflowers. The organic pollutants (Methylene Blue et al.) can be effectively degraded within 5 min; the performance of the flexocatalysis is comparable to that of state‐of‐the‐art piezocatalysis, with excellent stability and reproducibility. Moreover, the factors related to flexocatalysis such as material morphology, adsorption, mechanical vibration intensity, and temperature are explored, which give deep insights into the mechanocatalysis. This study opens the field of flexoelectric effect‐based mechanochemistry in 2D centrosymmetric semiconductors.

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Bio‐Nanotechnology in High‐Performance Supercapacitors

Zhang

Wang

et al. 2017

Advanced Energy Materials

182

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on seeking suitable electrode materials, and optimizing the electrode/electrolyte and electrode/current collector interface properties. As the core of such energystorage devices, the electrode materials directly determine the processing cost and performance of devices, such as their rate capability, specific capacitance (C sp ), cycling stability, etc, which enable the safe and highly-efficient use of energy. [1a,3] Based on the mechanisms of charge storage, SC electrodes can be classified as electric double layer electrodes (EDLEs), pseudocapacitive electrodes, and hybrid electrodes. Most of the EDLEs use carbon materials (activated carbon (AC), [4] carbon nanotubes (CNTs), [5] carbon nanofibers (CNFs), [6] graphene (GN), [7] etc.) as the electrode active materials and store energy only by electrostatic accumulation at the electrode/electrolyte interface. EDLEs usually show high charge-discharge rates and high cycling stability, while their energy densities (≈5 W h kg −1 ) are often greatly limited by the Brunauer-Emmett-Teller (BET) specific surface area (S BET ) and the pore size distribution of electrode materials. Pseudocapacitive electrodes are generally based on conductive polymers (polypyrrole (PPy), polyaniline (PANI), polythiophene, etc.) [8] and transition metal oxides/ hydroxides (Fe 3 O 4 , MnO 2 , RuO 2 , NiO, Co 3 O 4 , Ni(OH) 2 , etc.), [9] and use reversible faradic processes for energy storage. Compared to EDLEs, pseudocapacitive electrodes can offer much higher storage capabilities because of the faradic reactions involved. In the case of transition metal oxides/hydroxides, however, their poor electrical conductivity generally leads to low power density. In addition, the easily damaged structures of conductive polymers during the faradic processes usually lead to poor cycling stability. To resolve these problems, hybrid electrodes (GN/PPy, CNTs/PPy, GN/MnO 2 , PPy/MnO 2 , NiMoO 4 / PANI, CNTs/MoS 2 , PPy/MoS 2 , etc.) [10] have been developed to take complete advantage of both EDLEs and pseudocapacitive electrodes. For a long time, nanotechnological techniques have been considered as promising approaches to prepare highly efficient SC electrodes. [1b,11] Compared with micro-and submillimeter materials, nanomaterials as active SC electrodes have the following advantages: [12] (1) A high S BET means sufficient electroactive sites and thus high capacity utilization of electrode materials; (2) Intrinsic porous structures and small particle sizes, which contribute to the complete penetration of the electrolyte and reduce the diffusion path of electrolyte ions; (3) Highly ordered hierarchical structures can relieve the stress within the materials and offer stable channels for electron transfer, which can ensure good cycling stability; (4) The The use of bio-nanotechnology for the fabrication of diverse functional nanomaterials with precisely controlled morphologies and microstructures is attracting considerable attention due to its sustainability and renewability. As one of the key energy storag...

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A critical review of the reactivity of manganese oxides with organic contaminants

Cited by 222 publications

References 175 publications

Pharmaceutical removal from water with iron- or manganese-based technologies: A review

Pharmaceutical removal from water with iron- or manganese-based technologies: A review

Highly Efficient Flexocatalysis of Two‐Dimensional Semiconductors

Bio‐Nanotechnology in High‐Performance Supercapacitors

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